Naps helped a little. GS5 remained grumpy and clingy most of the day, but he was much improved over the way he started the day. GS4 got a little whiny, but it didn't progress far. When I picked him up and told him I was hungry for toes, he laughed with joy and alternately tried to keep his feet away from my face, then put them near and said "you can't eat my toes".